828380811 has 16 divisors (see below), whose sum is σ = 1220327424. Its totient is φ = 497169024.

The previous prime is 828380809. The next prime is 828380837. The reversal of 828380811 is 118083828.

It is not a de Polignac number, because 828380811 - 2¹ = 828380809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 828380811.

It is not an unprimeable number, because it can be changed into a prime (828380881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351931 + ... + 354276.

It is an arithmetic number, because the mean of its divisors is an integer number (76270464).

Almost surely, 2^828380811 is an apocalyptic number.

828380811 is a deficient number, since it is larger than the sum of its proper divisors (391946613).

828380811 is a wasteful number, since it uses less digits than its factorization.

828380811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706250.

The product of its (nonzero) digits is 24576, while the sum is 39.

The square root of 828380811 is about 28781.6054277728. The cubic root of 828380811 is about 939.1681228612.

The spelling of 828380811 in words is "eight hundred twenty-eight million, three hundred eighty thousand, eight hundred eleven".